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6936b5859c
Starting from a single file, A, if you create B as a copy of A (and
possibly make some edit) and then make extensive change to A, you
will see:
$ git diff -C --name-status
C89 A B
M A
which is expected. However, if you ask the same question in a
different way, you see this:
$ git diff -B -M --name-status
R89 A B
M100 A
telling us that A was rename-edited into B (as if "A will no longer
exist as the result") and at the same time A itself was extensively
edited.
In this case, because the resulting tree still does have file A
(even if it has contents vastly different from the original), we
should use "C"opy, not "R"ename, to avoid hinting that A somehow
goes away.
Two existing tests were depending on the wrong behaviour, and fixed.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
88 lines
1.7 KiB
Bash
Executable File
88 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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test_description='typechange rename detection'
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. ./test-lib.sh
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test_expect_success setup '
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rm -f foo bar &&
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cat "$TEST_DIRECTORY"/../COPYING >foo &&
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test_ln_s_add linklink bar &&
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git add foo &&
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git commit -a -m Initial &&
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git tag one &&
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git rm -f foo bar &&
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cat "$TEST_DIRECTORY"/../COPYING >bar &&
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test_ln_s_add linklink foo &&
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git add bar &&
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git commit -a -m Second &&
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git tag two &&
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git rm -f foo bar &&
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cat "$TEST_DIRECTORY"/../COPYING >foo &&
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git add foo &&
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git commit -a -m Third &&
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git tag three &&
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mv foo bar &&
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test_ln_s_add linklink foo &&
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git add bar &&
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git commit -a -m Fourth &&
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git tag four &&
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# This is purely for sanity check
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git rm -f foo bar &&
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cat "$TEST_DIRECTORY"/../COPYING >foo &&
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cat "$TEST_DIRECTORY"/../Makefile >bar &&
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git add foo bar &&
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git commit -a -m Fifth &&
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git tag five &&
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git rm -f foo bar &&
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cat "$TEST_DIRECTORY"/../Makefile >foo &&
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cat "$TEST_DIRECTORY"/../COPYING >bar &&
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git add foo bar &&
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git commit -a -m Sixth &&
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git tag six
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'
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test_expect_success 'cross renames to be detected for regular files' '
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git diff-tree five six -r --name-status -B -M | sort >actual &&
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{
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echo "R100 foo bar"
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echo "R100 bar foo"
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} | sort >expect &&
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test_cmp expect actual
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'
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test_expect_success 'cross renames to be detected for typechange' '
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git diff-tree one two -r --name-status -B -M | sort >actual &&
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{
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echo "R100 foo bar"
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echo "R100 bar foo"
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} | sort >expect &&
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test_cmp expect actual
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'
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test_expect_success 'moves and renames' '
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git diff-tree three four -r --name-status -B -M | sort >actual &&
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{
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# see -B -M (#6) in t4008
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echo "C100 foo bar"
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echo "T100 foo"
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} | sort >expect &&
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test_cmp expect actual
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'
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test_done
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